摘要
巷道围岩的位移控制一直是煤矿开采中的热点问题,尤其是工作面回采过程中对顶板下沉量的监测。采用三维激光扫描技术对某煤矿3306工作面顶板下沉量进行监测,并与传统压力监测系统进行了比较。监测结果显示,三维激光扫描技术可以达到毫米级的准确率,在超前回采工作面50 m位置安设更能发挥作用,并在相同开采进度下,近采空区区域顶板下沉量比远离采空区区域顶板下沉量大。
The displacement control of tunnel surrounding rock has always been a hot issue in coal mining,especially the monitoring of roof subsidence during the mining process of the working face.The three-dimensional laser scanning technology was used to monitor the subsidence of the roof of the 3306 working face in a certain coal mine,and compared with traditional pressure monitoring systems.The monitoring results show that the three-dimensional laser scanning technology can achieve millimeter level accuracy,and is more effective when installed at a position of 50 m in advance of the mining face.Under the same mining progress,the subsidence of the roof in the near goaf area is greater than that in the far goaf area.
作者
张鹏飞
Zhang Pengfei(Jinneng Holdings Shanxi Institute of Science and Technology Energy Research Institute Co.,Ltd.,Jinzhong Shanxi 030600,China)
出处
《山西冶金》
CAS
2023年第7期231-233,共3页
Shanxi Metallurgy
关键词
巷道顶板
激光测距仪
围岩监测
roadway roof
laser rangefinder
surrounding rock monitoring
